DBMS > Ehcache vs. MySQL vs. OpenQM
System Properties Comparison Ehcache vs. MySQL vs. OpenQM
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|Editorial information provided by DB-Engines|
|Name||Ehcache Xexclude from comparison||MySQL Xexclude from comparison||OpenQM also called QM Xexclude from comparison|
|Description||A widely adopted Java cache with tiered storage options||Widely used open source RDBMS||QpenQM is a high-performance, self-tuning, multi-value DBMS|
|Primary database model||Key-value store||Relational DBMS Key/Value like access via memcached API||Multivalue DBMS|
|Secondary database models||Document store|
|Developer||Terracotta Inc, owned by Software AG||Oracle since 2010, originally MySQL AB, then Sun||Martin Phillips|
|Current release||3.8.1, September 2019||8.0.24, April 2021||3.4-12|
|License Commercial or Open Source||Open Source Apache Version 2; commercial licenses available||Open Source GPL version 2. Commercial licenses with extended functionallity are available||Open Source GPLv2, extended commercial license available|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||Java||C and C++|
|Server operating systems||All OS with a Java VM||FreeBSD|
|Data scheme||schema-free||yes||yes with some exceptions|
|Typing predefined data types such as float or date||yes||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||no||yes||yes|
|SQL Support of SQL||no||yes with proprietary extensions||no|
|APIs and other access methods||JCache||ADO.NET|
Proprietary native API
|Supported programming languages||Java||Ada|
|Server-side scripts Stored procedures||no||yes proprietary syntax||yes|
|Triggers||yes Cache Event Listeners||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding by using Terracotta Server||horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||yes by using Terracotta Server||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Tunable Consistency (Strong, Eventual, Weak)||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes not for MyISAM storage engine||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes supports JTA and can work as an XA resource||ACID not for MyISAM storage engine||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes table locks or row locks depending on storage engine||yes|
|Durability Support for making data persistent||yes using a tiered cache-storage approach||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes|
|User concepts Access control||no||Users with fine-grained authorization concept no user groups or roles||Access rights can be defined down to the item level|
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|Ehcache||MySQL||OpenQM also called QM|
|DB-Engines blog posts|
MySQL is the DBMS of the Year 2019 MariaDB strengthens its position in the open source RDBMS market The struggle for the hegemony in Oracle's database empire
MariaDB strengthens its position in the open source RDBMS market The struggle for the hegemony in Oracle's database empire
The struggle for the hegemony in Oracle's database empire
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